#include <stdio.h>

int sum(int x, int y)
{
	int m = x + y;
	return m;
}

int print()
{
	printf("1234\n");
	return;
}

int main()
{
	int (*p)(int, int) = &sum;
	int (*x)() = &print;
	printf("%p %p %p\n", *p,p,&p);
	x();
	print();
	(*print)();
	return 0;
}